The invention discloses a large-scale dipolar antenna based NOMA downlink non-interfering transmission method. The large-scale dipolar antenna based NOMA downlink non-interfering transmission method comprises the steps of 1, starting; 2, determining channel state information by a base station transmitting end; 3, pre-coding to-be-transmitted information of a user by a base station; 4, sending information to the user by the base station; and 5, ending. In the method, the user K can obtain a signal thereof through one-time processing, delay caused by a serial interference elimination technologycan be avoided and wrong broadcasting cannot occur; the user K when receiving a superposed signal obtains the signal thereof rather than signals of other users, so that the safety of each user in thesystem is guaranteed efficiently. The method has the processing speed better than that of other commonly used methods in the prior art and particularly better than that of an OMA system method.